exam
Maths Puzzle
Numerical Ability
please help me solve for x the equation 22=(9+x)x
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exam Other Question
the sum of two numbers is 11 at most. Their difference is 21. What are these two numbers?
Need help in solving matrix
[ 2 2 0] [ -10 ]
-4-3 2 2
a= 0-3-5, B= -9 , AX=b